1. Which of the following does not have higher exp. S (entropy) than calculated S in pure H20
a. CaCO3 b. AgCl c. PbSo4 d. MgF2
2. Consider the reaction:
NH3(aq) + H20(l)---- NH4(aq) = OH(aq)
a. the NH3 is acting as an Arrhenius base and a B.L. acid
b. the H20(l) is acting as both a B.L. acid and B.L. base
c. The NH3 is acting as an Arrhenius base and a B.L. base
d. The NH3 is acting as a B.L. base and its conj. acid is OH
3. Which of the following effects is explained through ion pairing
a. Diverse ion b. Common ion c. Uncommon ion d. Both a. & c.
4. For any spontaneous process
a. Delta Suniverse > 0
b. Delta Suniverse < 0
c. Delta G < 0
d. both (a) and (c)